Challenges in processing copper ores containing sulfosalts

Kobylyanski, A.; Жукова, Валентина Федорівна; Петров, Г. В.; Boduen, A. Ya.

doi:10.1201/9781003017226-18

Cited by 2 publications

(1 citation statement)

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“…Ongoing research is developing new extraction methods, such as the Dni-Hydrometallurgy process developed by DirectNickel, which can also process the entire laterite profile without prior separation (cf. Kobylyanski et al 2019). But because of the complexity needed to handle and process the nickel-cobalt laterites, much research has focused on ore delineation and min eralogical identification for distinguishing rocks.…”

Section: Processingmentioning

confidence: 99%

Advances in Raw Material Industries for Sustainable Development Goals

Litvinenko¹

2020

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Section: Processingmentioning

confidence: 99%

Advances in Raw Material Industries for Sustainable Development Goals

Litvinenko¹

2020

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Preparation of rhodium concentrate from gold cementate

Zelyakh

Voinkov

Тимофеев

et al. 2023

Izv.VUZ. Tsvet. Met.

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This article describes studies on improving reprocessing technology gold production cementate (GPC) formed in refining section of chemical metallurgical shop at JSC Uralelektromed, in order to increase the extraction rate of targeted metals into marketable products, diversification of production, achievement of economic effect due to increasing content of precious metals (PM) in individual concentrates. The optimization of GPC reprocessing technology includes intensification of leaching of initial material and filtration of produced pulp, in order to increase the extraction of gold and platinum group metals (PGM) into solution and decrease the circulated PM. This would allow individual products (crude PM) to be obtained with minimum material loss and labor consumption. It is possible to increase rhodium content in concentrate and to reduce its circulation by preliminary oxidating annealing at the temperature above 500 °C. At this temperature hardly soluble trioxide Rh2O3 is formed on rhodium surface, insoluble in aqua regia, thus allowing it to deposit in the form of individual product. The influence of temperature and composition of gaseous phase was established upon oxidizing annealing of initial raw stuff (t = 500÷750 °C) on the composition of rhodium trioxide concentrate (15÷45 % Rh2O3). Reprocessing flowchart of gold production cementate was developed and tested on commercial scale, allowing for the simultaneous production of several products: deposited gold (Au ≥ 98 %), deposited silver (Ag ≥ 98 %), PGM concentrate (Pt ≥ 45 % and Pd ≥ 15 %), rhodium concentrate (Rh = 15÷45 %).

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Challenges in processing copper ores containing sulfosalts

Cited by 2 publications

References 1 publication

Advances in Raw Material Industries for Sustainable Development Goals

Advances in Raw Material Industries for Sustainable Development Goals

Preparation of rhodium concentrate from gold cementate

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